The Caterpillar 301.8 Hydraulic Excavator provides the customer with a versatile machine with further increased stability and suitable for a wide range of applications requiring a longer reach with Caterpillar Work Tools. The 301.8 is versatile, easy to operate and service, and has options to rent, lease or own.

Engine Model Mitsubishi L3NE NA Diesel
Net Power 18.1 hp
Gross Power 19.0 hp

Operating weight 3703.0 lb
Operating weight with cab 3935.0 lb

Max digging depth - standard stick 6.8 ft
Max reach ground level - standard stick 11.8 ft
Center ground clearance 0.75 ft
Height over cab 7.19 ft
Height over canopy 7.2 ft
Length to Center of Rollers 11.84 ft
Max cutting height - long stick 11.2 ft
Max cutting height - standard stick 10.9 ft
Max digging depth - long stick 7.8 ft
Max dump height - long stick 8.1 ft
Max dump height - standard stick 7.7 ft
Max horizontal reach - long stick 12.9 ft
Max horizontal reach - standard stick 12.2 ft
Max reach ground level - long stick 12.6 ft
Max vertical dig depth - long stick 5.9 ft
Max vertical dig depth - standard stick 5.3 ft
Shipping Height 7.19 ft
Shipping length 12.1 ft
Stick length - long stick 3.6 ft
Stick length - standard stick 2.9 ft
Swing radius - rear 3.58 ft
Track gauge 2.5 ft
Track shoe width 9.0 ft
Transport Width 3.22 ft
Width over track 3.25 ft
Width upper structure 3.3 ft

Engine Dimensions
Bore 3.0 in
Stroke 3.0 in
Displacement 58.0 in3

Travel System
Gradeability (max) - high 30.0 Degrees
Max traction force - high speed 1574.0 lb
Max traction force - low speed 3372.0 lb
Travel speed - high 3.0 mph
Travel speed - low 1.25 mph

Hydraulic System
Operating Pressure - Equipment 2988.0 psi
Digging forces - stick (standard) 2226.0 lb
Digging force - stick (long) 1978.0 lb
Digging force - bucket 3462.0 lb
Operating Pressure - Travel 2988.0 psi
Operating Pressure - Swing 2524.0 psi
Auxiliary circuits - primary - at 174 bar 9.1 gal/min
Auxiliary circuits - secondary - at 174 bar 3.85 gal/min
Pump - gear (dual) (swing, pilot) 3.85 gal/min
Pump - piston (tandem) 5.25 gal/min

Swing System
Type Hydraulic Motor Driven
Machine swing speed 10.5 RPM
Boom swing - left (without stop) 90.0 Degrees
Boom swing - left (with stop) 54.0 Degrees
Boom Swing - right 50.0 Degrees

Sound Levels
Canopy 83.0 dB(A)
Cab 83.0 dB(A)

Electrical System
Type Twelve-volt system

Width 38.5 in
Height 10.0 in
Dig Depth 9.8 in
Lift Height 7.7 in

Service Refill Capacities
Cooling system 1.06 gal
Engine oil 1.1 gal
Hydraulic tank 6.3 gal
Fuel tank 5.8 gal
Hydraulic system 9.8 gal

MSC Comments
MSC Spec Date 8/05

Comfort and Ease of Operation
The spacious cab and easy operating controls are designed for comfort and productivity.

Comfort and Ease of Operation

Operator Station
The large, spacious cab offers superior leg room, air circulation and an expansive viewing area with flat glass throughout for easy and inexpensive replacement.

Suspension Seat and Wrist Supports
A suspension seat is standard and coupled with adjustable wrist supports, help increase operator comfort and reduce fatigue.

Low Effort Controls
Ergonomic, low effort controls offer greater operator comfort for increased productivity. Dozer lever mounted, two-speed travel control provides easy operation and increases foot room.

Line of Sight Instrumentation
The operator has a clear view of the machine's monitoring system, ensuring fuel level, water temperature and warning lights are easily seen.

Optional Fan and Sun Visor
Operator comfort can be further enhanced with the optional fan and sun visor package.

Performance and Versatility
A wide range of buckets and hydraulically powerd tools optimize machine performance.

Work Tools
Caterpillar offers a wide range of work tools to increase the machine's versaility. The work tools are designed to optimize performance and deliver excellent value through high productivity and long life. Work tools include:
  • Augers
  • Buckets - digging, ditch cleaning, tilt ditch
  • Hydraulic hammers
  • Scrap shears
  • Thumbs
  • Vibratory compactors

Mechanical Quick Coupler
The Cat Quick Coupler makes frequent tool changes fast and easy. Compatible with all Cat Mini Hydraulic Work Tools, it features a strong, lightweight, low profile design with no debris traps for years of secure work tool changes.

Stick Options
A choice of standard or long stick enables matching of machine to application.

Bucket Angle
High rotation bucket angle combines good spoil retention and flat back trench characteristics.

Dozer Blade Float Function
The dozer float enables easy ground leveling for landscaping and finishing applications, as well as more efficient clean-up.

Auxiliary Lines and Connectors
The auxiliary lines and connectors are fitted as standard meaning the Cat 301.8 comes ready to work. Hammer (one-way) auxiliary lines are also fitted as standard.

Low Operating Costs
Downtime is kept to a minimum with easy access to convenient daily check points.

Low Operating Costs

Front Linkage
Protected front linkage lines are routed above the boom and stick to to help reduce damage and downtime.

Service Access
A large, swing-out rear door allows access to major components and service points within the engine enclosure, including:
  • Air filter
  • Engine oil check and fill
  • Engine oil filter element
  • Radiator reservoir tank, check and fill
  • Vertically-mounted, spin-on fuel filter/water separator
  • Windshield washer fluid tank

Sight Gauge
A hydraulic oil sight gauge makes fluid level checks fast and easy.

S·O·SSM Valve
The S·O·S oil sampling valve allows easy sampling of hydraulic fluid for preventive maintenance.

500-Hour Oil Change
The 500-hour oil and filter change period helps keep operating costs down.

Customer Support
Industry-leading customer support provided by the Cat dealer network.

Customer Support

Make detailed comparisons before you buy. Your Cat dealer can give you precise answers to your questions.

Consider all the flexible financing options your Cat dealer offers, as well as day-to-day operating costs. Your dealer can provide a financing package to meet your needs.

Improving operating techniques can boost your profits. Your Cat dealer has training literature, classes and other ideas to help increase your productivity.

Equipment Maintenance Services
Services that help optimize machine performance include:
  • Customer Support Agreements
  • S·O·SSM and Coolant Sampling and Technical Analysis
  • Maintenance contracts
  • Scheduled technical inspections

Umatched Product Support
Nearly all parts are found at our dealer parts counter. A world-wide computer network finds in-stock parts and usually delivers within 24 hours to minimize machine downtime. Additionally, Caterpillar offers a line of genuine remanufactured components which can help lower repair costs.



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